3x+x+x+12=152

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Solution for 3x+x+x+12=152 equation: 



3x+x+x+12=152

We move all terms to the left:

3x+x+x+12-(152)=0

We add all the numbers together, and all the variables

5x-140=0

We move all terms containing x to the left, all other terms to the right

5x=140

x=140/5

x=28

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